the following patch was just integrated into master:
commit 93b2bd70ff65a534e91c203c7948deea315675d5
Author: Kyösti Mälkki <kyosti.malkki at gmail.com>
Date: Tue Aug 13 21:51:53 2013 +0300
usbdebug: Do not support logging from SMM
Letting SMI handler touch EHCI controller is an excellent source
of USB problems. Remove usbdebug entirely from SMM.
It may be possible to make usbdebug console work from SMM
after hard work and coordination with payloads and even
OS drivers. But we are not there.
Change-Id: Id50586758ee06e8d76e682dc6f64f756ab5b79f5
Signed-off-by: Kyösti Mälkki <kyosti.malkki at gmail.com>
Reviewed-on: http://review.coreboot.org/3858
Reviewed-by: Patrick Georgi <patrick at georgi-clan.de>
Tested-by: build bot (Jenkins)
See http://review.coreboot.org/3858 for details.
-gerrit